<?hh // strict
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the "hack" directory of this source tree.
 *
 *
 */

function f1(): Vector<string> {
  return Vector { 'hello', 'world' };
}

function f2(): Vector<int> {
  return Vector {};
}

function f3(): Vector<Vector<string>> {
  return Vector { f1(), Vector { 'a', 'b', 'c' }, Vector {} };
}
